Rising levels of carbon pollution have been causing summers to heat up for decades. The season has warmed since 1970 in 97% of 242 U.S. cities analyzed by Climate Central. And summers will only become ...

Unseasonably high temperatures have swept across South Korea and Japan, contributing to dangerous wildfire conditions from March 21, 2025, to March 26, 2025. Human-caused climate change has ...

Levels of planet-warming CO2 in the atmosphere surged in 2024, growing at the fastest annual rate on record. As heat-trapping pollution continues to warm the planet, summer temperatures are arriving ...

Click the downloadable graphic: Local Extremely Hot Summer Days at CSI 2 or Higher Levels of planet-warming CO2 in the atmosphere surged in 2024, growing at the fastest annual rate on record. The ...

Click the downloadable graphic: What is attribution science? Humans have increased Earth’s temperature, mainly by burning fossil fuels like coal, oil, and methane gas. The resulting heat-trapping ...

Coastal Risk Finder, Climate Central’s new interactive map resource, shows who’s at risk from worsening coastal floods driven by rising seas in the U.S. — and what’s being done to adapt.

The Climate Shift Index (CSI), Climate Central’s daily temperature attribution system, applies the latest peer-reviewed methodology to map the influence of climate change on temperatures across the ...

Daily average temperatures reached Climate Shift Index (CSI) levels of 5 in central Canada from May 26 to May 29, 2025. A CSI level 5 indicates that human-caused climate change made this heat at least ...

Oceans made warmer by human-caused climate change are fueling more intense hurricanes in the Atlantic. In our warming climate, these storms also bring heavier rainfall and higher storm surge when they ...

Wildfires are sparked either by natural events (generally lightning) or by human activities. But people started 87% of U.S. wildfires from 2001 to 2024, accounting for almost half of all acres burned ...